Ruling · Yama Dīpadāna · 1961

Sunday 5 November

Boundaryin Baoding, under the Rashtriya Panchang method. A threshold is only 4 min 33 s away. Say “contested”.

Decide it for

38°52′ N 115°28′ E · Asia/Shanghai · GeoNames 1816971

The two evenings

One ghaṭī is 24 minutes. Pradoṣa is 2 muhūrtas after sunset.

Evening of Sunday 5 November

Taken. The only evening Trayodaśī reaches.

17:14 sunsetpradoṣa ends 19:03
16:5017:1417:3818:0218:2618:5019:14

109 of 109 minutes covered

Evening of Monday 6 November

Trayodaśī is absent from pradoṣa. Not taken.

17:13 sunsetpradoṣa ends 19:02
Trayodaśī ends 17:08:13
16:4917:1317:3718:0118:2518:4919:13

0 of 109 minutes covered

Trayodaśī presentPradoṣa, the window the rule readsThe instant the tithi begins or ends

How it was decided

  1. 01

    Aṅga

    Trayodaśī runs from 15:49 on Sun 5 Nov to 17:08 on Mon 6 Nov.

    1961-11-05T07:49:27Z → 1961-11-06T09:08:14Z

  2. 02

    Kāla

    Pradoṣa is 2 muhūrtas after sunset: 17:14–19:03 on the 5th, 17:13–19:02 on the 6th.

    pradosha: night-muhurta-1-2 · sunrise and sunset: upper limb, 31′ + 16′

  3. 03

    Rule

    Trayodaśī must be present during pradoṣa. It covers 109 of 109 minutes on the 5th and 0 of 109 on the 6th.

    Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104

  4. 04

    Tie-break

    Only one evening qualifies. No tie-break is needed.

    priority: unstated → only-day · margin 273 s < 300 s

  5. 05

    Ruling

    Yama Dīpadāna, Baoding, 1961: Sunday 5 November.

    confidence: boundary (margin)

Say it like this

In Baoding, Yama Dīpadāna 1961 falls on Sunday 5 November. Trayodaśī runs from 15:49 on Sun 5 Nov to 17:08 on Mon 6 Nov and covers all of pradoṣa that evening. It is 4 min 33 s from a threshold: treat the date as contested.

ahargana.org/baoding/festivals/1961/yama-dipadana · pac-rp@2026.1

Who says what

AuthorityKindDate
Ahargaṇa, pac-rpThis rulingSun 5 Nov
Ahargaṇa, classicalDisc centre, no refractionSun 5 Nov
compat-drikpanchangComparison profileSun 5 Nov
No institution has a recorded ruling for Baoding.

Institutional rulings are recorded with a source address, and are never edited to agree.

The rule, as data

/rules/yama-dipadana · ruleset 2026.3-draft

Month
Āśvina, amānta
Pakṣa · aṅga
Kṛṣṇa · Trayodaśī
Kāla
Pradoṣa
Priority
Unstated
Tie-break
Longer coverage, as a boundary
Reference
CRC 1955, p. 104

“K 13 Yama dipadana (pradosa).” Calendar Reform Committee 1955, General Rules for Religious Festivals, p. 104.

The same rule, elsewhere

Twelve places, west to east. Local clock times.

PlaceTrayodaśīSunset 5thCoveredSunset 6thCoveredRuled
Los Angeles23:49 → 01:0816:56107 min16:560 min5 Nov
Chicago01:49 → 03:0816:40111 min16:390 min5 Nov
Jersey City02:49 → 04:0816:48110 min16:470 min5 Nov
Port of Spain03:49 → 05:0817:4198 min17:410 min5 Nov
London07:49 → 09:0816:27117 min16:250 min5 Nov
Durban09:49 → 11:0818:2185 min18:210 min5 Nov
Dubai11:49 → 13:0817:36103 min17:350 min5 Nov
Delhi13:19 → 14:3817:33104 min17:320 min5 Nov
Kolkata13:19 → 14:3816:57102 min16:560 min5 Nov
Singapore15:19 → 16:3818:2096 min18:200 min5 Nov
Sydney17:49 → 19:0818:2683 min18:2741 min5 Nov
Suva19:49 → 21:0818:140 min18:1589 min6 Nov
Profile · tradition
pac-rp@2026.1 · smarta
Rule
yama-dipadana@2026.3-draft
Engine · kernel
0.1.0 · de440 7eef…ea74
Boundary margin
300 s

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